AHP-based Analysis for Influencing Factors of Comprehensive Recovery of Ion-type Rare Earth Resources through Mining and Beneficiation Method
The in?situ leach mining process was adopted for the ion?type rare earth in South China. An influencing factor evaluation system for comprehensive recovery of rare earth resources through mining and beneficiation was established in respect of rare earth ions leaching, mother liquor collecting and recycling. The evaluation system included eight factors at criteria layer, which were subdivided into 27 factors as indicators. Based on the quantitative analysis with analytic hierarchy process ( AHP ) , it was found that key influencing factors included joint fracture features in rock mass of water?resisting floor, leach liquid injection sequence, relative relations between positions of floor and groundwater ( phreatic water) , the supply, runoff and drainage of ground water ( phreatic water) , liquid collection method, liquid collection floor project, and the permeability. Some targeted countermeasures were put forward, including intensifying productive prospecting, focusing on basic experimental research, optimizing mining method and process technique.
in-situ leach miningion-type rare earth depositcomprehensive recovery through mining and beneficiationanalytic hierarchy process ( AHP )influencing factorscountermeasures
NETL
NSTL
万方数据
维普
